* {
    margin: 0;
}

/*body {*/
/*    display: flex;*/
/*    justify-content: center;*/
/*}*/

body > div {
    /*border: 1px solid red;*/
    width: 1000px;
    min-width: 1000px;
}

.middle > div {
    width: 900px;
    margin: 50px 0;
}

.content > div {
    text-indent: 3em;
    font-family: 新宋体;
    font-size: 20px;
    line-height: 35px;
    margin-bottom: 35px;
}

/*-------------产品轮播------------*/
.product > div {
    margin: 10px;
    text-align: center;
}

.product > div > div:nth-child(1) {
    width: 200px;
    height: 150px;
}

.product > div img {
    width: 100%;
    height: 100%;
}

.middle > div > div:nth-child(2) > div:nth-child(2) {
    overflow: hidden;
}

.product {
    animation: move 5s linear infinite;
}

@keyframes move {
    0% {
        margin-left: 0;
    }
    /*20% {*/
    /*    margin-left: -200px;*/
    /*}*/
    /*40% {*/
    /*    margin-left: -400px;*/
    /*}*/
    60% {
        margin-left: -200px;
    }
    /*80% {*/
    /*    margin-left: 0;*/
    /*}*/
    100% {
        margin-left: 0px;
    }
}